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Originally Posted by DKolberg
with a 6" dia wheel and 2250 rpm you exceeded the max velocity. 2250 with a 6" wheel is 58.90 ft/sec or 17.95 m/sec and the limit is 12 m/sec.  |
That is assuming all the rim velocity from the wheel(s) are transfered to the ball, As I understand the design the ball is only driven on one side. If you have wheels on both sides of the ball then you are more likely to have a closer match between wheel speed and ball speed, There is still going to be some slippage unless you have a very long contact surface. IE the belt idea.